#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
void swap(int *a, int *b)
{
	int tmp = 0;
	tmp = *a;
	*a = *b;
	*b = tmp;
}

int main()
{
	int a, b;
	scanf("%d %d", &a, &b);
	swap(&a, &b);
	printf("%d %d", a, b);
	return 0;
}